cork oak
 CAS: 977038-68-8
Use(s): natural substances and extractives
steel cut oat
 CAS: 84012-26-0  EC: 281-672-4
Use(s): food additive
 oat bran
 CAS: 84012-26-0  EC: 281-672-4
Use(s): food additive and cosmetic agents
 oat flake
 CAS: 84012-26-0  EC: 281-672-4
Use(s): food additive
 oat gum
 CAS: 73020-09-4
Use(s): thickeners, gelling agents, stabilizers
 oat hull fiber
 Use(s): dietary supplements
 oat kernel protein
 CAS: 134134-87-5
Use(s): food additive and cosmetic agents
 oatmeal
 CAS: 84012-26-0  EC: 281-672-4
Use(s): food additive and cosmetic agents
 ocimum basilicum
 CAS: 84775-71-3  EC: 283-900-8  FEMA: 2118
Use(s): food additive
 ocimum basilicum leaf powder
 CAS: 84775-71-3  EC: 283-900-8  FEMA: 2118
Use(s): spices, other natural seasonings and flavorings
 ocimum gratissimum
 Use(s): spices, other natural seasonings and flavorings
 ocimum minumum
 CAS: 977051-55-0
Use(s): spices, other natural seasonings and flavorings
 ocimum sanctum leaf
 CAS: 91845-35-1  EC: 295-208-3
Use(s): spices, other natural seasonings and flavorings
 octacosanol
 CAS: 557-61-9  EC: 209-181-2
Use(s): special dietary and nutritional additives
 octadecyl amine
 CAS: 124-30-1  EC: 204-695-3
Use(s): boiler water additives, emulsifiers, stabalizers, thickeners
 octafluorocyclobutane
 CAS: 115-25-3  EC: 204-075-2
Use(s): propellants, aerating agents, and gas
 octanoic acid
 CAS: 124-07-2  EC: 204-677-5  FEMA: 2799  JECFA: 99  FLAVIS: 08.010
Use(s): flavor and fragrance agents
3-oxooctanoic acid glyceride
 CAS: 91052-68-5  EC: 293-230-8  FEMA: 3771  JECFA: 911  FLAVIS: 09.556
Use(s): emulsifiers, flavoring agents
 octanol
 CAS: 111-87-5  EC: 203-917-6  FEMA: 2800  JECFA: 97  FLAVIS: 02.006
Use(s): flavor and fragrance agents
1-octenyl succinic anhydride
 CAS: 7757-96-2  EC: 231-828-2
Use(s): food starch-modified
 octoxynol-1
 CAS: 2315-67-5
Use(s): adjuvants for pesticide use dilutions
 octoxynol-3
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-5
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-6
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-7
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-8
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-9
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-10
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-11
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-12
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-13
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-16
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-20
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-25
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-30
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-33
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-40
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octoxynol-70
 CAS: 9002-93-1
Use(s): adjuvants for pesticide use dilutions
 octyl alcohol synthetic
 CAS: 977152-92-3
Use(s): multipurpose additives
 octyl gallate
 CAS: 1034-01-1  EC: 213-853-0
Use(s): antioxidants
4-(tert-octyl) phenol
 CAS: 140-66-9  EC: 205-426-2
Use(s): adjuvants for pesticide use dilutions
 olea europaea fruit extract
 CAS: 8001-25-0  EC: 232-277-0  FEMA: 4801
Use(s): cosmetic agents, dietary supplements
 olea europaea pulp extract
 CAS: 8001-25-0  EC: 232-277-0
Use(s): antioxidants
(Z)-oleic acid
 CAS: 112-80-1  EC: 204-007-1  FEMA: 2815  JECFA: 333  FLAVIS: 08.013
Use(s): thickeners, gelling agents, stabalizers and emulsifiers
 oleic acid from tall oil fatty acids
 CAS: 977047-39-4
Use(s): coatings, films and related substances
 olestra
 CAS: 121854-29-3
Use(s): used in place of fats and oils
 oleyl acetate
 CAS: 693-80-1  EC: 211-759-4  FEMA: 4359  JECFA: 1638
Use(s): cosmetic agents
(Z)-oleyl alcohol
 CAS: 143-28-2  EC: 205-597-3  FEMA: 4363  JECFA: 1637
Use(s): cosmetic agents and indirect food additives: paper and paperboard components
 oligosaccharides
 CAS: 66455-21-8
Use(s): food additive
 olive oil
 CAS: 8001-25-0  EC: 232-277-0
Use(s): solvents/deluents for flavor and/or fragrance agents
 onion
 Use(s): spices, other natural seasonings and flavorings
green onion
 Use(s): food additive
 onion juice concentrate
 Use(s): flavoring agents, food additives
 onion oleoresin
 CAS: 130007-42-0
Use(s): flavoring agents and adjuvants
 onion salt
 Use(s): spices, other natural seasonings and flavorings
 opoponax
 CAS: 977136-06-3
Use(s): spices, other natural seasonings and flavorings
 opoponax gum
 CAS: 9000-78-6  EC: 232-558-8
Use(s): flavor and fragrance agents
 orange B
 CAS: 15139-76-1
Use(s): coloring agents
 orange essence
 CAS: 977091-85-2
Use(s): flavoring agents
 orange essence oil
 CAS: 68514-75-0
Use(s): flavoring agents
 orange essence oil folded
 CAS: 68514-75-0
Use(s): flavor and fragrance agents
 orange essence oil terpeneless
 CAS: 68514-75-0
Use(s): flavor and fragrance agents
bitter orange flower
 CAS: 977051-52-7
Use(s): food additive
 orange juice
 CAS: 977059-38-3
Use(s): flavoring agents and adjuvants
 orange juice oil
 CAS: 132538-94-4
Use(s): flavoring agents
 orange peel
 CAS: 977070-86-2
Use(s): spices, other natural seasonings and flavorings
 orangeflowers
 CAS: 8030-28-2  FEMA: 2819
Use(s): spices, other natural seasonings and flavorings
 oregano leaf
 CAS: 977138-70-7  FEMA: 2827
Use(s): spices, other natural seasonings and flavorings
 oregano oleoresin
 Use(s): flavoring agents and adjuvants
 origanum laevigatum
 Use(s): spices, other natural seasonings and flavorings
 origanum majorana
 CAS: 977051-23-2  FEMA: 2662
Use(s): spices, other natural seasonings and flavorings
 origanum majorana leaf
   FEMA: 2662
Use(s): spices, other natural seasonings and flavorings
 origanum majorana oleoresin
 CAS: 977038-85-9  FEMA: 2659
Use(s): flavoring agents and adjuvants
 origanum majorana seed
 CAS: 977038-86-0  FEMA: 2661
Use(s): spices, other natural seasonings and flavorings
 origanum maru
 Use(s): spices, other natural seasonings and flavorings
 origanum onites
 Use(s): spices, other natural seasonings and flavorings
 origanum rotundifolium
 Use(s): spices, other natural seasonings and flavorings
 origanum sipyleum
 Use(s): spices, other natural seasonings and flavorings
 origanum vulgare flower
 CAS: 84012-24-8  EC: 281-670-3
Use(s): food additive
 origanum vulgare hirtum
 Use(s): spices, other natural seasonings and flavorings
laevo-ornithine
 CAS: 70-26-8  EC: 200-731-7
Use(s): special dietary and nutritional additives
 orotic acid
 CAS: 65-86-1  EC: 200-619-8
Use(s): nutrient supplements, EFSA concludes: use is of safety concern.
 orthosiphon stamineus leaf extract
 CAS: 84012-29-3  EC: 281-674-5
Use(s): dietary supplements
 oryza sativa bran fiber
 CAS: 68553-81-1  EC: 271-397-8
Use(s): special dietary and nutritional additives
 oryza sativa hull powder
 CAS: 68553-81-1  EC: 271-397-8
Use(s): cosmetic agents, dietary supplements
 osteopontin
 CAS: 106441-73-0
Use(s): special dietary and nutritional additives
 oxygen
 CAS: 7782-44-7  EC: 231-956-9
Use(s): cosmetic agents
 ozone
 CAS: 10028-15-6  EC: 233-069-2
Use(s): antimicrobial agents